You didn't remove libcamhal-common.
Please show
$ systemctl status v4l2-relayd $ cat /sys/class/video4linux/*/name please check installed files of libcamhal-ipu6ep-common, and check if file exist to make sure you have everything installed correctly. $ dpkg -L libcamhal-ipu6ep-common
Did you do the reboot after everything installed?
You didn't remove libcamhal-common.
Please show
$ systemctl status v4l2-relayd video4linux/ */name ipu6ep- common, and check if file exist to make sure you have everything installed correctly. ipu6ep- common
$ cat /sys/class/
please check installed files of libcamhal-
$ dpkg -L libcamhal-
Did you do the reboot after everything installed?